The L-shaped building rises five or six storeys above the western bank of the Awbeg River, its corners decorated with thin embattled turrets that give it an almost military silhouette. The roof, once a hipped slated affair, has been replaced with a flat one, but the walls retain their random rubble construction with ashlar quoins, the dressed corner stones that were a mark of considered building rather than rough utility. It is an unusually grand piece of industrial architecture for a river mill, and all the more striking for how quietly it sits beside the water.

The mill was erected around 1810 by Sir James Anderson, and ownership passed through several hands over the following decades. The Brownings worked it until 1865, after which the Corbetts and then a Mr Walsh took over. By 1885 it was in the hands of William R. Oliver, who undertook significant restoration of the mill and its watercourses. Oliver also introduced the Robinson Roller system, a late nineteenth-century milling innovation that used a series of steel rollers rather than traditional millstones to grind grain more efficiently, and he installed both steam and turbine power. The technical arrangement survives in some detail: a weir on the Awbeg diverts water almost immediately into the wheel-pit, where an inward-flowing turbine transfers power through a cogged gear-wheel to a line shaft, with pulley-wheels running along its length. The wooden floors remain intact, and the machinery from the late nineteenth and early twentieth centuries is still in place, including a winnower, driers, cleaners, a hoist, and a generator. Somewhere on the western wall, a rough stone bears the inscribed initials "NS", their meaning unrecorded.